若a的值为1,则表达式!a‖++a的值是______。
参考答案:A
解析: 逻辑运算中,非1即0,非0即1,!a=0,++a为逻辑1,所以0和1相或结果为1。
I didn't realize my mistake________my teacher had a facetoface talk with me.[ ]
A. until
B. after
C. since
D. when
不属于四海的内容是()。
A.髓海
B.血海
C.气海
D.精海
E.水谷之海